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Papilionaceous, butterfly-like; applied to the peculiar irregular flower common in Leguminos�.

Peloria, an abnormal return to regularity and symmetry in an irregular flower; commonest in Snapdragon.

An irregular flower is generally distinguished by petals of unequal size or shape.

It is probable that peloria may occur in any habitually irregular flower, and that, if more attention were directed to the subject, illustrations might be obtained from a larger number of natural families than can be done at present.

In cases where an habitually irregular flower becomes regular, the change in form is frequently associated with an alteration in direction both of the flower as a whole and, to a greater or less extent, of its individual members, for instance of Gloxinia, the normal flowers of which are irregular and pendent, there is now in common cultivation a peloriate race in which the flowers are regular in form and erect in position.